Which Species Is Least Likely to Become Extinct

question 20

Multiple Choice

Which species is least likely to become extinct?

• A)a fish species found in all five of the Great Lakes
• B)a fish species that feeds on only rare snails found in only one small river
• C)a mammal species that can live equally well on dry land and in fresh water
• D)a fish species that has hybridized with another species to produce infertile offspring
• E)a mammal species that feeds on a rare tropical orchid

Grasp the relationship between standard deviation and variance.

Recognize the impact of extreme scores on standard deviation.

Learn the conditions under which data can have zero variability.

Comprehend the combined use of measures of central tendency and variability in describing data.

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Definitions:

Standard Cost Variances

The differences between the expected (standard) costs of a product and the actual costs incurred.

Cost of Goods Sold

The overall expenses involved in creating or purchasing goods sold in a given timeframe, consisting of the cost of materials, workforce, and indirect costs.

Standard Cost

A set cost for producing either one unit or multiple units of a product within a defined timeframe, based on existing or expected operational circumstances.

Direct Materials

The raw materials that can be directly traced to the production of a specific product.